@kubernetes/client-node/dist/exec.js

NodeJS client for kubernetes

import querystring from 'node:querystring';
import { isResizable, TerminalSizeQueue } from './terminal-size-queue.js';
import { WebSocketHandler } from './web-socket-handler.js';
export class Exec {
    constructor(config, wsInterface) {
        this.handler = wsInterface || new WebSocketHandler(config);
    }
    /**
     * @param {string}  namespace - The namespace of the pod to exec the command inside.
     * @param {string} podName - The name of the pod to exec the command inside.
     * @param {string} containerName - The name of the container in the pod to exec the command inside.
     * @param {(string|string[])} command - The command or command and arguments to execute.
     * @param {stream.Writable} stdout - The stream to write stdout data from the command.
     * @param {stream.Writable} stderr - The stream to write stderr data from the command.
     * @param {stream.Readable} stdin - The stream to write stdin data into the command.
     * @param {boolean} tty - Should the command execute in a TTY enabled session.
     * @param {(V1Status) => void} statusCallback -
     *       A callback to received the status (e.g. exit code) from the command, optional.
     * @return {Promise<WebSocket>} A promise that will return the web socket created for this command.
     */
    async exec(namespace, podName, containerName, command, stdout, stderr, stdin, tty, statusCallback) {
        const query = {
            stdout: stdout != null,
            stderr: stderr != null,
            stdin: stdin != null,
            tty,
            command,
            container: containerName,
        };
        const queryStr = querystring.stringify(query);
        const path = `/api/v1/namespaces/${namespace}/pods/${podName}/exec?${queryStr}`;
        const conn = await this.handler.connect(path, null, (streamNum, buff) => {
            const status = WebSocketHandler.handleStandardStreams(streamNum, buff, stdout, stderr);
            if (status != null) {
                if (statusCallback) {
                    statusCallback(status);
                }
                return false;
            }
            return true;
        });
        if (stdin != null) {
            WebSocketHandler.handleStandardInput(conn, stdin, WebSocketHandler.StdinStream);
        }
        if (isResizable(stdout)) {
            this.terminalSizeQueue = new TerminalSizeQueue();
            WebSocketHandler.handleStandardInput(conn, this.terminalSizeQueue, WebSocketHandler.ResizeStream);
            this.terminalSizeQueue.handleResizes(stdout);
        }
        return conn;
    }
}
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